This is the unabridged version of this research report. The Carroll Trail went through central Montana from Carroll Landing on the Missouri River to Helena, Montana. The Carroll Trail story is one of adventure, danger, and the attempts at settlement of the western frontier after the civil war. This was at a time when the conflict between indigenous Indian tribes and the immigrating "white man " was reaching a peak. The battle of the Little Big Horn was only three years off and the slaughter of the large buffalo herds was too well advanced to halt. The Judith Basin and Crooked Creek segments of the Carroll Trail were in the area of the last stand of the great buffalo herds. The Blackfeet and Crow Tribes still occupied their traditional lands but were rapidly being forced to fight to protect their primary food source – the buffalo.